Macromedia flash 8-learning flash lite 1.x actionscript 사용자 설명서

12

Flash 4 ActionScript Primer

In addition to letting you reference existing variables, you can also use the 

eval()

 function on 

the left side of a variable assignment to create variables at runtime. For example, suppose you 
want to maintain a list of high scores as a user plays a game. Each time the user completes a 
turn, you add their score to the list:

eval("highScore" add scoreIndex) = currentScore;
scoreIndex++;

Each time this code executes, it adds a new item to the list of high scores and then increments 
the 

scoreIndex

 variable, which determines each item’s index in the list. For instance, you 

might end up with the following variables:

highScore1 = 2000
highScore2 = 1500
highScore3 = 3000

Working with text and strings

Flash Lite provides some basic ActionScript commands and properties for working with text. 
You can get and set the values of text fields, concatenate strings, URL-encode or URL-decode 
text strings, and create scrolling text fields.

This section contains the following topics:

■

■

Concatenating strings

To concatenate strings in Flash Lite, you use the 

add

 operator, as the following example 

shows:

city = "Boston";
team = "Red Sox";
fullName = city add " " add team;
// Result:
// fullName = "Boston Red Sox"

Scrolling text

You can use the 

scroll

 property of dynamic and input text fields to get or set the field’s 

current scroll position. You can also use the 

maxscroll

 position to determine a text field’s 

current scroll position relative to the maximum scroll position. For an example of how to 
create a scrolling text field, see “Creating scrolling text (Flash Professional Only)” in 
Developing Flash Lite Applications.